diff --git a/.hgtags b/.hgtags
index 1768beaebf1..498f9c8a5aa 100644
--- a/.hgtags
+++ b/.hgtags
@@ -76,3 +76,4 @@ c10a71cf16e471425e6d7564e3f7a648f14b702e v2.5
 2fa9ba9cfa23cefd0f05345c0ed034dcaa719a39 v2.5.1c1
 728086143ce3d953d39eca988b68e9aeec26a8e4 v2.5.2c1
 09b167a4018b6da68e20812ebf1a05357e0b6224 v2.5.2
+0000000000000000000000000000000000000000 v2.5.2